6512_DukeSutton_APPROVAL_UpdatedWQMP_DIN27204_20170104

State of North Carolina | Environmental Quality | Waste Management
1646 Mail Service Center | 217 West Jones Street | Raleigh, 27699-1646
919 707 8200

ROY COOPER
Governor

January 4, 2017

Sent via email - [e-mail]

Mr. John Toepfer
Lead Engineer
Duke Energy
410 South Wilmington Street/NC 14
Raleigh, North Carolina 27601

Re: Approval of Updated Water Quality Monitoring Plan
Duke Energy Progress, Inc. – L.V. Sutton Energy Complex
Coal Combustion Residuals (CCR) Landfill
New Hanover County
DIN 27204

Dear Mr. Toepfer:

The North Carolina Division of Waste Management, Solid Waste Section (Section) has reviewed
the Updated Water Quality Monitoring Plan (DIN 27113) submitted on your behalf by Geosyntec
on November 15, 2016 for the CCR Landfill at the L.V. Sutton Energy Complex. The Section
approves the updated Water Quality Monitoring Plan (WQMP). This WQMP supersedes the
original Plan submitted with the Permit to Construct Application (DIN 25549).

The updated Water Quality Monitoring Plan includes eight (8) monitoring wells associated with
Phase 1 (Cells 3-8), three (3) monitoring wells associated with Phase 2 (Cells 1-2) and three (3)
monitoring wells associated with Phase 3 (Cells 9-11). This water quality monitoring network
shall be sampled semi-annually. It is the Section’s understanding that the monitoring wells will
be installed on a per Phase basis. Upon completion of well installations, submit the boring logs
and well construction records (Form GW-1b) to the Section.

Groundwater monitoring wells associated with Phase 1 must be sampled for the Appendix I
constituent list prior to waste placement. In addition to a hard copy, provide the Section with
an electronic copy of the groundwater monitoring data collected at the landfill facility.
Guidelines for sampling groundwater and submitting data electronically can be located on the
Section’s website: http://deq.nc.gov/about/divisions/waste-management/waste-management-
permit-guidance/solid-waste-section/environmental-monitoring

Approval-Updated WQMP
Duke Energy Progress L.V. Sutton Energy Complex
January 4, 2017
Page 2

If you have any questions or concerns, please contact me via email
[e-mail] or phone [phone].

Sincerely,

Elizabeth S. Werner
Permitting Hydrogeologist
Solid Waste Section

Cc: Victor Damasceno, Ph.D., P.E. – Geosyntec
Donald Gibbs, P.E. – Duke Energy
Ed Mussler, P.E. – SWS, Permitting Branch Head
Drew Hammonds – SWS, Eastern District Supervisor
Larry Frost – SWS, Permitting Engineer
Shannon Aufman – SWS, Permitting Engineer
Shawn McKee – SWS, Environmental Specialist